source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/MenuLoop.asm@ 622

Last change on this file since 622 was 589, checked in by Krister Nordvall, 8 years ago

Changes:

  • BIOS: Fixed a purely cosmetic bug from r542 where, in builds containing MODULE_EBIOS, the boot menu would display an incorrect drive size (0.4 kB with MODULE_STRINGS_COMPRESSED or 0.5 kB without) for old drives with no support for LBA.
  • Fixed a bug from r392 where Vision_DetectAndReturnIDinAXandPortInDXifControllerPresent would return the ID in AL instead of AH (if DANGEROUS_DETECTION had been defined).
  • Fixed a bug from r587 in AdvAtaInit.asm that would prevent detection of QDI Vision controllers.
  • Also changed how the QDI Vision IDs are defined (removed the need for shifting) to avoid confusion. This fixed a potential bug from r587 in AdvAtaInit.asm where some IDs were not being shifted.
  • Fixed a bug in PDC20x30.asm from r587 where GetPdcIDtoAX would not return with the IDE base port in DX so DisablePdcProgrammingMode would fail.
  • Made some changes to ModuleDependency.inc and other files so that MODULE_ADVANCED_ATA now requires USE_386. Consequently it is no longer included in the regular AT-builds, only in the 386_8k-build.
  • Moved the UNROLL_SECTORS_IN_CX_TO_xWORDS macros from IDE_8bit.inc to IdeIO.inc which means it's now possible to build a BIOS without MODULE_8BIT_IDE.
  • XTIDECFG: Added a minimum DOS version check (since it needs DOS version 2+) to allow the program to quit gracefully in the unlikely scenario where someone tries to run it under DOS version 1.
  • Made some changes to Drive.asm to improve drive enumeration. The old method using GET_DOS_DRIVE_PARAMETER_BLOCK_FOR_SPECIFIC_DRIVE worked well in Windows XP but not in Windows 98 SE (in Windows or in DOS mode). The two problems were; 1) The function call would access the drives which on single floppy drive systems would cause Windows to swap between A: and B: (throwing a blue screen asking the user to insert a disk etc). 2) Only floppy drives and FAT16 drives would be available in the list of drives, no FAT32/optical/network drives.
  • Improved code in IdeControllerMenu.asm so that the default port addresses for all IDE interfaces are now restored when (re-)selecting the (same) type of IDE device.
  • Also made it impossible to select a device type unless the required module is included in the loaded BIOS.
  • The version check done when loading a BIOS now uses the FLASH_SIGNATURE definition from Version.inc. Any changes affecting RomVars now only requires updating that definition. This means that changes to RomVars must be implemented in both the BIOS and XTIDECFG before being committed to the repository.
  • Added a compatibility fix for 3Com 3C503 cards to the ROM checksumming code in Buffers.asm (Buffers_GenerateChecksum).
  • SerDrive: Made some minor changes to file names and paths to improve compatibility with case sensitive environments.
  • BIOSDRVS: Made a minor size optimization which as a side effect also makes it compatible with all DOS versions including DOS version 1.
  • Library: Renamed the WAIT_RETRACE_IF_NECESSARY_THEN macro to CALL_WAIT_FOR_RETRACE_IF_NECESSARY_THEN and made a tail-call-optimized version of it (JMP_WAIT_FOR_RETRACE_IF_NECESSARY_THEN).
  • A speed optimization to the eRCL_IM macro for 386 and higher. This change breaks emulation in the sense that the macro will fail when given a memory operand as the first parameter.
  • Other minor optimizations and fixes.
File size: 5.7 KB
RevLine 
[41]1; Project name : Assembly Library
2; Description : Menu loop for waiting keystrokes.
3
[376]4;
[526]5; XTIDE Universal BIOS and Associated Tools
6; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
[376]7;
8; This program is free software; you can redistribute it and/or modify
9; it under the terms of the GNU General Public License as published by
10; the Free Software Foundation; either version 2 of the License, or
11; (at your option) any later version.
[526]12;
[376]13; This program is distributed in the hope that it will be useful,
14; but WITHOUT ANY WARRANTY; without even the implied warranty of
15; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
[526]16; GNU General Public License for more details.
[376]17; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18;
19
[526]20
[41]21; Section containing code
22SECTION .text
23
24;--------------------------------------------------------------------
25; MenuLoop_Enter
26; Parameters
27; SS:BP: Ptr to MENU
28; Returns:
29; Nothing
30; Corrupts registers:
31; AX, BX, CX, DX, SI, DI
32;--------------------------------------------------------------------
[369]33ALIGN MENU_JUMP_ALIGN
[41]34MenuLoop_Enter:
[58]35 call KeystrokeProcessing
36 call TimeoutProcessing
[189]37%ifdef MENUEVENT_IDLEPROCESSING_ENABLE
[105]38 call MenuEvent_IdleProcessing ; User idle processing
[189]39%endif
[41]40 test BYTE [bp+MENU.bFlags], FLG_MENU_EXIT
41 jz SHORT MenuLoop_Enter
[58]42 ret
[41]43
44
45;--------------------------------------------------------------------
[105]46; KeystrokeProcessing
[58]47; TimeoutProcessing
[41]48; Parameters
49; SS:BP: Ptr to MENU
50; Returns:
51; Nothing
52; Corrupts registers:
[58]53; All, except SS:BP
[41]54;--------------------------------------------------------------------
[369]55ALIGN MENU_JUMP_ALIGN
[105]56KeystrokeProcessing:
57 call Keyboard_GetKeystrokeToAX
58 jnz SHORT ProcessKeystrokeFromAX
59NoKeystrokeToProcess:
60 ret
[41]61
[369]62ALIGN MENU_JUMP_ALIGN
[58]63TimeoutProcessing:
64 call MenuTime_UpdateSelectionTimeout
[105]65 jnc NoKeystrokeToProcess
[178]66 mov al, CR ; Fake ENTER to select item
[105]67 ; Fall to ProcessKeystrokeFromAX
[41]68
[58]69
[41]70;--------------------------------------------------------------------
71; ProcessKeystrokeFromAX
72; Parameters
73; AL: ASCII character
74; AH: BIOS scan code
75; SS:BP: Ptr to MENU
76; Returns:
[133]77; Nothing
[41]78; Corrupts registers:
79; AX, BX, CX, DX, SI, DI
80;--------------------------------------------------------------------
[369]81ALIGN MENU_JUMP_ALIGN
[41]82ProcessKeystrokeFromAX:
[60]83 xchg cx, ax
84 call MenuTime_StopSelectionTimeout
85 xchg ax, cx
86 call .ProcessMenuSystemKeystrokeFromAX
[105]87 jc SHORT NoKeystrokeToProcess
[41]88 jmp MenuEvent_KeyStrokeInAX
[526]89
[41]90;--------------------------------------------------------------------
[60]91; .ProcessMenuSystemKeystrokeFromAX
[41]92; Parameters
93; AL: ASCII character
94; AH: BIOS scan code
95; SS:BP: Ptr to MENU
96; Returns:
97; CF: Set if keystroke processed
98; Cleared if keystroke not processed
99; AL: ASCII character (if CF cleared)
100; AH: BIOS scan code (if CF cleared)
101; Corrupts registers:
102; BX, CX, DX, SI, DI
103;--------------------------------------------------------------------
[369]104ALIGN MENU_JUMP_ALIGN
[60]105.ProcessMenuSystemKeystrokeFromAX:
[492]106%ifndef MENU_NO_ESC
[178]107 cmp al, ESC
[589]108 jne SHORT .NotEscape
[41]109
[589]110 ; Leave menu without selecting item
[58]111 call MenuEvent_ExitMenu
112 jnc SHORT .CancelMenuExit
[41]113 call MenuInit_CloseMenuWindow
[52]114 mov WORD [bp+MENUINIT.wHighlightedItem], NO_ITEM_HIGHLIGHTED
[58]115.CancelMenuExit:
[41]116 stc
117 ret
[492]118%endif
[526]119
[369]120ALIGN MENU_JUMP_ALIGN
[589]121.NotEscape:
122 cmp al, CR
123 jne SHORT .NotCarriageReturn
124
125 ; Select item
[52]126 mov cx, [bp+MENUINIT.wHighlightedItem]
[41]127 call MenuEvent_ItemSelectedFromCX
128 stc
[589]129.Return:
[41]130 ret
131
[589]132ALIGN MENU_JUMP_ALIGN
133.NotCarriageReturn:
134 test BYTE [bp+MENU.bFlags], FLG_MENU_USER_HANDLES_SCROLLING
135 jnz SHORT .Return ; With CF cleared since keystroke not processed
136 ; Fall to MenuLoop_ProcessScrollingKeysFromAX
[41]137
[589]138
[41]139;--------------------------------------------------------------------
140; MenuLoop_ProcessScrollingKeysFromAX
141; Parameters
142; AL: ASCII character
143; AH: BIOS scan code
144; SS:BP: Ptr to MENU
145; Returns:
146; CF: Set if keystroke processed
147; Cleared if keystroke not processed
148; AL: ASCII character (if CF cleared)
149; AH: BIOS scan code (if CF cleared)
150; Corrupts registers:
151; BX, CX, DX, SI, DI
152;--------------------------------------------------------------------
[369]153ALIGN MENU_JUMP_ALIGN
[41]154MenuLoop_ProcessScrollingKeysFromAX:
[178]155 xchg ah, al
156 cmp al, MENU_KEY_PGUP
[41]157 je SHORT .ChangeToPreviousPage
[178]158 cmp al, MENU_KEY_PGDN
[41]159 je SHORT .ChangeToNextPage
[178]160 cmp al, MENU_KEY_HOME
[41]161 je SHORT .SelectFirstItem
[178]162 cmp al, MENU_KEY_END
[41]163 je SHORT .SelectLastItem
164
[178]165 cmp al, MENU_KEY_UP
[41]166 je SHORT .DecrementSelectedItem
[178]167 cmp al, MENU_KEY_DOWN
[41]168 je SHORT .IncrementSelectedItem
169 clc ; Clear CF since keystroke not processed
[178]170 xchg ah, al
[41]171 ret
172
[369]173ALIGN MENU_JUMP_ALIGN
[41]174.ChangeToPreviousPage:
175 call MenuScrollbars_GetMaxVisibleItemsOnPageToCX
[589]176 neg cx
177 mov ax, cx
178 add cx, [bp+MENUINIT.wHighlightedItem]
[41]179 jge SHORT .MoveHighlightedItemByAX ; No rotation for PgUp
180 ; Fall to .SelectFirstItem
[369]181ALIGN MENU_JUMP_ALIGN
[41]182.SelectFirstItem:
[52]183 mov ax, [bp+MENUINIT.wHighlightedItem]
[41]184 neg ax
185 jmp SHORT .MoveHighlightedItemByAX
186
[369]187ALIGN MENU_JUMP_ALIGN
[41]188.ChangeToNextPage:
189 call MenuScrollbars_GetMaxVisibleItemsOnPageToCX
[589]190 mov ax, cx
191 add cx, [bp+MENUINIT.wHighlightedItem]
[41]192 cmp cx, [bp+MENUINIT.wItems]
193 jb SHORT .MoveHighlightedItemByAX ; No rotation for PgDn
194 ; Fall to .SelectLastItem
[369]195ALIGN MENU_JUMP_ALIGN
[41]196.SelectLastItem:
[178]197 stc
[41]198 mov ax, [bp+MENUINIT.wItems]
[178]199 sbb ax, [bp+MENUINIT.wHighlightedItem]
[41]200 jmp SHORT .MoveHighlightedItemByAX
201
[369]202ALIGN MENU_JUMP_ALIGN
[41]203.DecrementSelectedItem:
[581]204 mov al, -1
205 SKIP2B cx
[41]206.IncrementSelectedItem:
[581]207 mov al, 1
208 cbw
[369]209ALIGN MENU_JUMP_ALIGN
[41]210.MoveHighlightedItemByAX:
211 call MenuScrollbars_MoveHighlightedItemByAX
212 stc
213 ret
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